Portable storage unit



FIG. 1 is a perspective view of the portable storage unit of the presentinvention.

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right-side view thereof;

FIG. 5 is a left-side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines showing portions of the design form no part of theclaimed invention.

CLAIM I claim the ornamental design for a portable storage unit, asshown and described.